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(No Model.) 2 Sheets-Sheet 1.

F. DEMING. TUBE DRAWING BENCH.

No. 495,610. Patented Apr. 18, 1893.

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P. DEMING. TUBE :DRAWING BENCH.

No. 495,610. PatentedApr. 18, 189s.

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Nirnn STATES PATENTA OFFICE.

FERDINAND DEMING, OF VATERBURY, CONNECTICUT, ASSIGNOR TO RANDOLPH daCLOWTES, OF SAME PLACE.

TUBE-DRAWING BENCH.

SPECIFICATION forming part of Letters Patent No. 495,610, dated April18, 1893.

Application tiled October 8, 1892. vSerial No. 448,186. (No model.)

To a/ZZ whom, 15 may concern,.-

Be it known that I, FERDINAND DEMING, a citizen of the United States,residing at Taterbury, in the county of New Haven and State ofConnecticut, have invented certain new and useful Improvements inTube-Drawing Benches; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appcrtains to make and use thesame.

My invention relates to drawing benches generally but more especially toheavybenches such as are used in drawing tubes, rods and moldings; andmy invention has for its object to` produce a bench of this class whichshall be simple in construction, economical in cost, attractive indesign, firm and strong and capable of standing the strain of use for analmost unlimited length of time. Heretofore drawing benches of thisclass have ordinarily been made of wood or cast iron. Vooden or castiron benches or benches made partly of wood and partly of cast ironhowever have been far from satisfactory as it has been impossible tomake them firm and strong enough to stand the strain of heavy drawing.

The frame of my improved bench is made entirely of wrought iron orsteel, and while not excessively heavy is made very strong at just theplaces Where strength is required. I have found in practice that it isstrong and firm and abundantly able to stand the strain of heavydrawing. This result is accomplished by the special construction of`framework which I will now describe referring by nu mbers and lettersto the accompanying drawings forming part of this specification inwhich:

Figure l is a side elevation of my novel drawing bench and Fig. 2 a planview, the bench being broken away at the center; Fig. 3 a cross sectionon an enlarged scale on the line xx in Fig. l looking toward the left;Fig. et a cross section on the same scale on the line 'y y in Fig. llooking toward the right; Fig. 5 a plan view of one of the right endcastings detached, and Fig. 6 is a detail view illustrating another modeof connecting the bench proper to the end castings.

The bench proper of the machine consists of two vertical side platesdenoted by 1, and two transverse plates 2 lying between them. Inpractice I preferably use for plates l and 2 strips of ordinary channeliron that is to say plates consisting of webs a, having flanges b, attheir edges on one side thereof. Plates l are made perfectly solid withplates 2 by means of rivets 3 which pass through the flanges of plates 2and through the webs of plates l, as clearly shown. These rivets areplaced close enough together so as to make the bench proper of themachine as solid as if cast in a single piece.

The right end of the bench proper as seen inthe drawings is supported bytwo corresponding castings denoted by A which are provided with grooves2l to receive the lower flanges b, of side plates l, the upper flangesb, of the side plates resting upon the top of the castings.

The bench proper is secured to the castings by heavy transverse bolts fiwhich pass through the webs of plates l, the lianges ot' the uppertransverse plate 2 and through the castings, and by bolts 5 which passthrough the thickest portions of the castings below the bench proper.The left end of the bench proper as seen in the drawings is supported bytwo heavy castings denoted by B which are braced and connected togetherby a casting C. Castings B and C are rigidly locked together by bolts 6.

The bench proper is rigidly secured to casting B by bolts 7 which passthrough the dan ges of plates l and through portions of the castings.The bench proper is furthermore rigidly secured to casting C by bolts 8which pass through the webs of plates l and through the castings. Itwill be seen in Fig. 3 that the rear ends of the sides of castings C areprovided with inwardly turned projections C which lie between theiianges of plates l thereby supporting said plates firmly and giving thegreatest possible strength and rigidity to that portion of the machineupon which the most strain comes in use.

9 denotes a recess in casting C which receives the die not shown. ,Y

The chain which is shown only in dotted lines runs over aheavy sprocketwheel l0 journaled in boxes l1 upon castings A. Power to IOO drive thissprocket wheel is applied in any suitable manneigno driving mechanismbeing shown as it formsno part of my present invention. The chain is ofcourse endless, as usual in this class of machines, and passes over awheel 12 journaled in boxes 13 in casting B. These boxes are adapted tobeinoved in either direction by means of adjusting screws 19 so as toenable the operator to move Wheel 12 thereby increasing or decreasingthe tension of the chain.

In use wheel 12 is so adjusted as to permit the lower side of the chainto hang loosely as shown in Fig. 1, and to slide on the floor oi' in atrough not shown. The upper side of the chain, il. e. the operativeportion, rests upon the upper transverse plate 2, asis also clearlyshown said plate forming a perfectly rigid support therefor. After wheel12 has been adjusted the boxes are locked in place by plates 14 whichare rigidly bolted to casting B. l

15 denotes holes in vertical plates 1 which receive the ends of heavycross rods 16. These rods are engaged by the eyes of eye bolts 17. Atthe right end of the machine these bolts pass through holes in heavylugs 18 formed integral with castings A, see Figs. 1, 2 and 5. Theforward ends of the eye bolts are engaged by nuts 20 which whentightened up draw castings A and the bench proper together tightly,after which bolts 4 and 5 are inserted and tightened up. formed in thesame manner at the left end of the machine the forward ends of the eyebolts passing through casting C, as is clearly shown at the left inFigs. 1 and 2.

In Fig. 6 I have illustrated a mode of connecting the bench proper tothecastings in which bolts 16 and the eyebolts arek dispensed with and theparts connected together by means of angle pieces 22 which are bolted towebs a, and to the castings. In this form the castings are provided withsuitable recesses to receive the ends of the side plates as clearlyshown. 23 denotes the slide or carriage by which the gripping jaws 24are carried. This slide or carriage rests upon the top flanges of sideplates 1. Rollers may or may not be placed upon the carriage. Ipreferably however use a simple slide in which in practice rests andslides upon the tops of the side plates, the upper portion of the chainresting as already stated upon the web of the upper transverse plate. Inuse the chain moves continually, and the slide is connected thereto inany suitable manner as by a hook, not shown. The carriage is providedwith flanges 25 which engage the inner faces of the side plates and actto retain the carriage in position at all times.

Having thus described my invention, I claim- 1. In a drawing bench thecombination with flanged vertical plates 1 and flanged transverse plates2 firmly riveted thereto, of castings A, to which one end of plates 1are riv- The assembling is pereted, castings B to which the other end-ofplates 1 are riveted, and casting C by which castings B are braced andconnected together. to which plates 1 are rigidly bolted.

2. The combination with vertical plates 1 having flanges b, andtransverse plates 2 having similar flanges by which said plates aresecured together, of castings A, to which one end of plates 1 areriveted, castings B to which the other end of plates 1 are riveted, andcasting C by which castings B are braced and connected together. boltssecuring plates 1 and their flanges to said castings and other boltsextending through said castings transversely of the machine.

3. The combination With flanged vertical plates 1 and flanged transverseplates 2, said plates 1 having holes 15, of castings A, to which one endof plates 1 are riveted, castings B to which the other end of plates 1are riveted, and casting C by which castings B are braced and connectedtogether, cross rods in holes 15, and eye bolts 17 engaging said crossrods and a solid portion of the framework at each end thereof. p

4. The combination with flanged vertical plates 1 and flanged transverseplates 2 riv eted together substantially as described, s aid plates 1having holes 15, of castings A having lugs 18, a cross rod in holes 15,and eye bolts engaging the cross rods and passing through the lugs asand for the purpose set forth.

5. The combination with hanged vertical plates 1 and flanged transverseplates 2 riveted together substantially as shown, said plates 1 havingholes 15, of castings A having lugs 18, bolts securing said castingstogether,

bolts securing plates 1 to the castings, a cross rod lying in the holes,and eye bolts through which the cross rod passes and the forward ends ofwhich engage lugs 18.

6. The combination with flanged vertical plates 1 and flanged transverseplates 2 riv-l eted together, said plates 1 having holes 15, of castingsB and C, bolts securing said castings together, other bolts securingplates 1 to said castings, a cross rod in holes 15, and eye boltsengaging said cross rod and casting C.

7. A drawing bench the frame of which consists of flanged verticalplates and flanged strengthening plates placed transversely between thevertical plates and riveted or bolted thereto, the drawing chainsupported upon the upper transverse plate and the carriage supportedupon the side flanges.

- 8. The combination with castings A having recesses 21 and lugs 18, ofside plates 1 having flanges b at their opposite edges the lower flangesengaging recesses 21 and the upper flanges resting upon the castings,and trans- `verse plates 2 having flanges riveted to plates 1.

9. The combination with castings A having recesses 21, lugs 18 and holes15, of side plates 1 having flanges e at their opposite edges the lowerflanges engaging recesses 21 and the upper flanges resting upon thecastings, trans- IOC verse plates 2 having flanges riveted to plates l,a `cross rod 16 engaging the holes, and eye bolts engaging the cross rodand lugs 18.

23 resting upon the tops of the side plates xo and having flanges 25which bear upon the inner faces of said side plates.

10. The combination with castings A, of IntestimonywhereofIaffixmysignature in side plates l having iianges b at their oppopresence oftwo Witnesses. site edges the upper flanges resting upon the FERDINANDDEMING. castings, transverse plates 2 having anges riveted to plates l,suitable means for eonmeeting plates l to the castings and a carriageWitnesses:

CHAs. A. COTTER, ALICE DE LOWRY.

